One of the upcoming studies funded by Colorado marijuana research grants will examine how the use of cannabis concentrates affects driving and cognitive functioning. Pictured: A jar of marijuana is on display at the Rocky Road dispensary in the Aurora Hemp Marketplace on Nov. 3, 2016. (RJ Sangosti, Denver Post file)

Colorado researchers receive $2.35M to study marijuana use on driving, other impacts of legalization

In a groundbreaking effort to better understand what, exactly, happened after voters legalized recreational marijuana in Colorado, the state’s Health Department on Tuesday announced $2.35 million in grants to researchers who will help answer that question.

Most of the money — $1.68 million — will go toward two studies that look at the impacts of marijuana use on driving. The first will compare driving impairment for heavy marijuana consumers versus occasional consumers. The other will study dabbing — the smoking of highly potent marijuana extracts — to determine its effects on driving and cognitive functioning.

Other studies receiving grant funding will look at how long marijuana stays in the breast milk of nursing mothers, the adverse effects of edible cannabis products, the cardiovascular risks of marijuana use in people with heart problems, the impact of marijuana use on older adults and, lastly, an “analysis of data from before and after implementation of recreational marijuana in Colorado,” by a psychology professor specializing in addiction counseling at Colorado State University.

“This research will be invaluable in Colorado and across the country,” Dr. Larry Wolk, the executive director of the Colorado Department of Public Health and Environment, said in a statement. “The findings will inform our public education efforts and give people additional information they need to make decisions about marijuana use.”

The Health Department previously spent $9 million as part of a historic effort to fund the study of medical marijuana by a state government. Those research projects are still ongoing.

Earlier this year, the state legislature approved funding for the new grants to study recreational marijuana. The Health Department received 58 preliminary applications, which were winnowed to a pool of 16 from which the final seven recipients were selected.